Alert archive / New York / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 23, NWS Buffalo, NY
NWS Buffalo, NY issued this severe thunderstorm warning at Jul 28, 1993, 6:21 PM EDT for Allegany County, New York. It was in force for 69 min.
The area
The counties it named.
The facts
- Issued
- Jul 28, 1993, 6:21 PM EDT (22:21 UTC)
- Expired
- Jul 28, 1993, 7:30 PM EDT
- In force
- 69 min
- Issued by
- NWS Buffalo, NY
- Area
- Whole counties
County Allegany County, NY
The nearest sounding before it
Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 10.4 hours before the alert went out and 93 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 75 J/kg
- Mixed-layer CIN
- -54 J/kg
- Mixed-layer LCL
- 738 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 86 m²/s²
- 0-3 km storm-relative helicity
- 124 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS1 KBUF 282227 RRA SVRBUF NYC003-282330- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BUFFALO NY 621 PM EDT WED JUL 28 1993 THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 730 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS...... IN NEW YORK ...ALLEGANY COUNTY AT 630 PM BUFFALO RADAR DETCTED A SEVERE THUNDERSTORM ABOUT 5 MILES EAST OF FRANKLINVILLE IN CATTARAUGUS COUNTY. THE STORM WAS MOVING TO THE NORTHEAST AT 30 MILES AN HOUR AND WILL BE CROSSING ALLEGANY COUNTY DURING THE NEXT HOUR. THE CATTARAUGUS COUNTY SHERIFF REPORTED THAT WINDS FROM THIS STORM KNOCKED DOWN A COULE OF TREES BETWEEN LITTLE VALLEY AND SALAMANCA AS IT PASSED THROUGH. BE ON THE ALERT FOR THUNDERSTORMS ACCOMPANIED BY FREQUENT LIGHTNING...STRONG DAMAGING WINDS AND LARGE HAIL. LOCALLY HEAVY RAIN MAY ALSO CAUSE DRAINAGE FLOODING. IF THREATENING WEATHER APPROACHES GO TO A SAFE PLACE IMMEDIATELY. IN HOMES A BASEMENT OR INTERIOR ROOM IS THE SAFEST LOCATION.
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Jul 28, 5:40 PM EDT, 41 minutes before
NYZ001>005-021-022-282300- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE BUFFALO NY 540 PM EDT WED JUL 28 1993 DO NOT USE AFTER 7 PM AT 530 PM A CLUSTER OF THUNDERSTORMS WAS DETECTED OVER NORTHWEST PENNSYLVANIA FROM BRADFROD WESTWARD TO NEAR THE OHIO LINE. THE NORTHERN BOUNDARY OF THESE STORMS WAS JUST NORTH OF THE PA LINE NEAR JAMESTOWN. THESE STORMS ARE LIKELY TO PRODUCE GUSTY WINDS HEAVY DOWNPOURS AND POSSIBLY HAIL. THE STORMS WERE MOVING EAST AT 30 MPH AND WILL AFFECT THE EXTREME SOUTHERN SECTIONS OF CHAUTAUQUA AND CATTARAUGUS COUNTIES BETWEEN 530 AND 7 PM AND MAY MOVE INTO SOUTHERN ALLEGANY COUNTY AFT 630 PM. ELSEWHERE A NEW BATCH OF THUNDERSTORMS WAS DETECTED NEAR LONDON ONTARIO MOVING EASTWARD AT 30 MPH. IF THESE STORMS HOLD TOGETHER THEY MAY MOVE INTO WESTERN NEW YORK AFTER DARK. SAGE
Special weather statement, Jul 28, 5:43 PM EDT, 38 minutes before
NYZ001>005-021-022-282300- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE BUFFALO NY 540 PM EDT WED JUL 28 1993 DO NOT USE AFTER 7 PM AT 530 PM A CLUSTER OF THUNDERSTORMS WAS DETECTED OVER NORTHWEST PENNSYLVANIA FROM BRADFROD WESTWARD TO NEAR THE OHIO LINE. THE NORTHERN BOUNDARY OF THESE STORMS WAS JUST NORTH OF THE PA LINE NEAR JAMESTOWN. THESE STORMS ARE LIKELY TO PRODUCE GUSTY WINDS HEAVY DOWNPOURS AND POSSIBLY HAIL. THE STORMS WERE MOVING EAST AT 30 MPH AND WILL AFFECT THE EXTREME SOUTHERN SECTIONS OF CHAUTAUQUA AND CATTARAUGUS COUNTIES BETWEEN 530 AND 7 PM AND MAY MOVE INTO SOUTHERN ALLEGANY COUNTY AFT 630 PM. ELSEWHERE A NEW BATCH OF THUNDERSTORMS WAS DETECTED NEAR LONDON ONTARIO MOVING EASTWARD AT 30 MPH. IF THESE STORMS HOLD TOGETHER THEY MAY MOVE INTO WESTERN NEW YORK AFTER DARK. SAGE
The office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 28, 6:01 PM EDT | Severe Thunderstorm Warning | BUF | Cattaraugus | 59 min |
Nearby
Severe Thunderstorm Warnings in New York, 1993Every severe thunderstorm warning in 1993
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.